To do the ultrasound to quickly up urine, of course, we need to drink more water, because drinking more water to hold urine faster. To save more time, remind patients to pay attention to several things: 1, if the ultrasound appointment to the morning examination, for example, is 8:00 a.m. to start the examination, patients get up in the morning, drink about 500ml of boiled water first, because know fasting drinking water to hold urine is very fast, then you can bring breakfast early to the hospital, do the examination and then eat. 2, if the appointment to 11:00 a.m. to start the examination, it is recommended that patients at breakfast If the ultrasound is scheduled to start at 11:00 a.m., it is recommended that patients eat less porridge or soy milk, eat less salty food, drink some more boiled water at around 10:00 a.m., and then rush to the hospital to make preparations. 3. If the ultrasound is scheduled to start in the afternoon, it is recommended that patients eat less staple food at lunch and drink more soup, which should not be salty but must be light, and then bring boiled water, drink some more boiled water on the way to the hospital, and then rush to the hospital to make preparations, which will save patients’ time.